Manchester United boss Louis van Gaal can't guarantee Angel di Maria improving next season. Van Gaal conceded there is no guarantee that the player will perform better next season after a long holiday.

"I hope," Van Gaal said with a chuckle when asked if the World Cup was the reason behind Di Maria's poor form.

"You cannot always say that is the main factor. Of course, it plays a role, and I hope it is that, because then we can have a fantastic season next season.

"You have to adapt to our philosophy and that is also difficult for him, probably. Normally he shall have a fantastic season - I believe in that."